Color coated Galvanized Cold rolled Steel coil

Color coated Galvanized Cold rolled Steel coil System 1

Color coated Galvanized Cold rolled Steel coil System 2

Color coated Galvanized Cold rolled Steel coil System 3

Color coated Galvanized Cold rolled Steel coil

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 300 m.t./month

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Grade	Chemical composition %
	C	Si	Mn	P	S	Alta	Ti	Nb
	No more than	No more than	No more than	No more than	No more than	No less than	No more than	No more than
DC51D+Z,DC51D+ZF	0.1	---	0.5	0.035	0.035	---	---	---
(St01Z,St02Z,St03Z)	0.1	---	0.5	0.035	0.035	---	---	---


Grade	Mechanical properties						plating adhesion
	yield strength	tensile strength	n 90	r 90	Elongation %			Plating weight(g/m 2 )
	Mpa	Mpa	No less than	No less than	No less than			Bending diameter
								(a=thickness of slab)
					L 0 =80mm b=20mm
					Normal thickness mm
					≤ 0.7	>0.7		≤ 140/140	>140/140~	>175/175
					≤ 0.7	>0.7		≤ 140/140	175/175	>175/175
DC51D+Z(St01Z,St02Z,St03 Z), DC51D+ZF	---	270~500	---	---	20	22		0a	1a	2a
Exposure Test :						Salt Spray Test :
Exposure Test :						Salt Spray Test :
Environment	GI					Enviroment	GI Average Corrosion		AL-ZN Average Corrosion
	Average corrosion						GI Average Corrosion		AL-ZN Average Corrosion
	g/m2 /y	μ m/y					g/m2/y	um/y	g/m2/y	um/y
Tough Marine Climate	140	9.8				tough Marine Climate	140	9.8	16	2.2
Moderate Marine Climate	18	1.3				Modeerate Marine Climate	18	1.3	4	0.54
Industrial Climate	20	1.4				Industrial Climate	20	1.4	4.2	0.57
Countryside Climate	4	0.28				Countryside Climate	4	0.28	1.3	0.17
Plainness of hot dip galvanized substrate A.2.1 For steel sheet with a specified minimum yield strength less than 260MPa, the maximum plainness tolerance should be in conformity with the stipulations of Table A1.
MPa	Nominal width	Plainness (mm) for the nominal thickness as shown below
		Common precise PF.A			High-level precision PF.B
		<0.70	0.70~<1.60	1.60~3.0	<0.70	0.70~<1.60	1.60~3.0
<260	<1200	10	8	8	5	4	3
	1200~<1500	12	10	10	6	5	4
	≥1500	17	15	15	8	7	6
For steel sheet and steel strip with a specified minimum yield strength not less than 260MPa but less than 360MPa,and the grades of DC51+Z/Z DD51D+Z /S550GD+Z/ZF), the maximum plainness tolerance should be in conformity with the stipulations of Table A2. Table A2

MPa	Nominal width	Plainness (mm) for the nominal thickness as shown below
		Common precise PF.A			High-level precision PF.B
		<0.70	0.70~<1.60	1.60~3.0	<0.70	0.70~<1.60	1.60~3.0
260~<360	<1200	13	10	10	8	6	5
	1200~<1500	15	13	13	9	8	6
	≥1500	20	19	19	12	10	9
Thickness tolerance for hot dip galvanized substrate
Thickness tolerance for hot dip galvanized substrate
For steel sheet with a specified minimum yield strength less than 260MPa, the maximum thickness tolerance should be in conformity with the stipulations of Table A6.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.04	±0.05	±0.06	±0.030	±0.035	±0.040
>0.40~0.60	±0.04	±0.05	±0.06	±0.035	±0.040	±0.045
>0.60~0.80	±0.05	±0.06	±0.07	±0.040	±0.045	±0.050
>0.80~1.00	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>1.00~1.20	±0.07	±0.08	±0.09	±0.050	±0.060	±0.070
>1.20~1.60	±0.10	±0.11	±0.12	±0.060	±0.070	±0.080
>1.60~2.00	±0.12	±0.13	±0.14	±0.070	±0.080	±0.090
>2.00~2.50	±0.14	±0.15	±0.16	±0.090	±0.100	±0.110
>2.50~3.00	±0.17	±0.17	±0.18	±0.110	±0.120	±0.130
For steel sheet and steel strip with a specified minimum yield strength not less than 260MPa but less than 360MPa, the thickness tolerance should be in conformity with the stipulations of Table A7.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.05	±0.06	±0.07	±0.035	±0.040	±0.045
>0.40~0.60	±0.05	±0.06	±0.07	±0.040	±0.045	±0.050
>0.60~0.80	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>0.80~1.00	±0.07	±0.08	±0.09	±0.050	±0.060	±0.070
>1.00~1.20	±0.08	±0.09	±0.11	±0.060	±0.070	±0.080
>1.20~1.60	±0.11	±0.13	±0.14	±0.070	±0.080	±0.090
>1.60~2.00	±0.14	±0.15	±0.16	±0.080	±0.090	±0.110
>2.00~2.50	±0.16	±0.17	±0.18	±0.110	±0.120	±0.130
>2.50~3.00	±0.19	±0.20	±0.20	±0.130	±0.140	±0.150
For steel sheet and steel strip with a specified minimum yield strength not less than 360MPa, but less than or equal to 420 MPa, the thickness tolerance should be in conformity with the stipulations of Table A8.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.05	±0.06	±0.07	±0.040	±0.045	±0.050
>0.40~0.60	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>0.60~0.80	±0.07	±0.08	±0.09	±0.050	±0.060	±0.070
>0.80~1.00	±0.08	±0.09	±0.11	±0.060	±0.070	±0.080
>1.00~1.20	±0.10	±0.11	±0.12	±0.070	±0.080	±0.090
>1.20~1.60	±0.13	±0.14	±0.16	±0.080	±0.090	±0.110
>1.60~2.00	±0.16	±0.17	±0.19	±0.090	±0.110	±0.120
>2.00~2.50	±0.18	±0.20	±0.21	±0.120	±0.130	±0.140
>2.50~3.00	±0.22	±0.22	±0.23	±0.140	±0.150	±0.160
For steel sheet and steel strip with a specified minimum yield strength not less than 420MPa, but less than or equal to 900 MPa, the thickness tolerance should be in conformity with the stipulations of Table A9.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>0.40~0.60	±0.06	±0.08	±0.09	±0.050	±0.060	±0.070
>0.60~0.80	±0.07	±0.09	±0.11	±0.060	±0.070	±0.080
>0.80~1.00	±0.09	±0.11	±0.12	±0.070	±0.080	±0.090
>1.00~1.20	±0.11	±0.13	±0.14	±0.080	±0.090	±0.110
>1.20~1.60	±0.15	±0.16	±0.18	±0.090	±0.110	±0.120
>1.60~2.00	±0.18	±0.19	±0.21	±0.110	±0.120	±0.140
>2.00~2.50	±0.21	±0.22	±0.24	±0.140	±0.150	±0.170
>2.50~3.00	±0.24	±0.25	±0.26	±0.170	±0.180	±0.190
Width tolerance
Width tolerance
Nominal width	Width tolerance		Width tolerance of the hot-dip zinc, hot-dip alu-zinc coated alloy steel sheets should conform to relevant parameters designed by A12.
	Common precise PW.A	High-level precision PW.B
≤1200	0~+5	0~+2
>1200~1500	0~+6	0~+2
>1500	0~+7	0~+3

Q:How are steel coils used in the manufacturing of automotive fuel tanks?: Steel coils are used in the manufacturing of automotive fuel tanks as they provide strength, durability, and resistance to corrosion. These coils are formed and welded into shape to create the fuel tank, ensuring it can withstand the pressure and vibrations associated with storing and transporting fuel safely.

Q:hello, I am trying to figure out what wok to get and came across a website that offers many woks out of different materials. what is the best, or considered original (traditional)? I have a couple of cast iron pots and pans - too heavy, so I am assuming it will take some time for a cast iron wok to heat up. what about carbon steel and stainless steel? Thanks: 1. Do not buy stainless Steel wok. Stainless steel is a poor conductor of heat. 2. Cast iron is traditional. It is heavy and takes long to heat and cool. You can get used to heating cooling, but weight can be a problem. I would not buy cast iron. 3. You may not believe this but carbon steel is also traditional and most widely used wok. Normally, a good wok is pounded out of high carbon steel thick stock. The pounding leaves thick bottom and gradually thinner walls. It is a good conductor of heat, easy to heat and cool, and light weight to mange taking off the heat when needed. I recommend buying high carbon steel wok

Q:Can steel coils be coated with zinc-aluminum alloy?: Yes, steel coils can be coated with a zinc-aluminum alloy through a process called hot-dip galvanizing. This coating provides enhanced corrosion resistance and improved durability to the steel coils.

Q:How do steel coils compare to other materials, such as aluminum or copper?: Steel coils have several advantages over other materials such as aluminum or copper. Steel is stronger and more durable, making it an excellent choice for applications that require high tensile strength and resistance to wear and tear. Additionally, steel coils have a higher melting point than aluminum, making them more suitable for high-temperature environments. Copper, while a good conductor of electricity, is generally more expensive than steel and may not offer the same level of strength and versatility. Overall, steel coils are a cost-effective and reliable option for various industrial and construction purposes.

Q:What are the common coil lengths available for steel coils?: The steel coil lengths offered in the industry and specific requirements are subject to variation. Nonetheless, several standard coil lengths are extensively employed in different applications. These encompass coil lengths of 100 feet (30.48 meters), 200 feet (60.96 meters), 300 feet (91.44 meters), and 500 feet (152.4 meters). These lengths find extensive use in construction, manufacturing, and automotive sectors, where steel coils serve diverse purposes. It is worth mentioning that coil lengths can also be tailored to meet specific project requirements or customer preferences.

Q:What is the width range of steel coils?: The width range of steel coils can vary depending on the specific type and purpose of the coil, but it typically falls within the range of 600 mm (23.6 inches) to 2,200 mm (86.6 inches).

Q:What are the properties of high-strength steel coils?: High-strength steel coils possess a range of unique characteristics that make them highly sought-after in diverse industrial applications. Firstly, these coils demonstrate extraordinary strength, enabling them to withstand substantial force or weight without deformation or breakage. This quality renders them suitable for demanding environments and heavy-duty purposes. Another noteworthy property of high-strength steel coils is their exceptional resistance to wear and tear. They exhibit a high level of hardness, allowing them to endure abrasion, impact, and other forms of mechanical stress. Consequently, they prove ideal for applications where durability and longevity are paramount, such as construction, automotive manufacturing, and machinery production. Furthermore, high-strength steel coils frequently exhibit remarkable corrosion resistance. They are typically coated or treated with protective materials to prevent rust or other types of deterioration caused by exposure to moisture, chemicals, or harsh environmental conditions. This corrosion resistance ensures the durability and reliability of the coils, making them well-suited for use in marine environments or outdoor structures. Additionally, high-strength steel coils offer excellent formability, meaning they can be easily shaped or bent without compromising their strength or integrity. This characteristic empowers manufacturers to create intricate or customized shapes for specific applications, enhancing the versatility and adaptability of the coils. Lastly, high-strength steel coils are renowned for their lightweight nature compared to other materials possessing similar strength properties. This low weight-to-strength ratio positions them as the preferred choice in industries that prioritize weight reduction, such as aerospace or automotive manufacturing. It facilitates improved fuel efficiency, increased payload capacity, and overall cost savings. In conclusion, high-strength steel coils possess exceptional strength, resistance to wear and tear, corrosion resistance, formability, and lightweight characteristics, rendering them invaluable and versatile materials in a wide array of industries.

Q:How are steel coils used in the production of roofing materials?: Steel coils are used in the production of roofing materials as they are rolled out and cut into specific dimensions to create metal roofing sheets. These coils provide a sturdy and durable base material that is resistant to weather conditions, ensuring long-lasting and reliable roofing solutions.

Q:What are the common methods of preserving steel coils?: Some common methods of preserving steel coils include applying protective coatings, such as oil or paint, to prevent corrosion and rust formation. Another method is using VCI (Vapor Corrosion Inhibitor) paper or film, which releases chemicals that prevent oxidation. Additionally, steel coils can be stored in climate-controlled environments or wrapped in moisture-resistant materials to minimize exposure to moisture and humidity, which can accelerate corrosion.

Q:What are the different types of surface treatments for steel coils?: There are several types of surface treatments for steel coils, including galvanizing, painting, and coating. Galvanizing involves applying a layer of zinc to protect the steel from corrosion. Painting involves applying a layer of paint to provide both corrosion resistance and aesthetic appeal. Coating involves applying a thin layer of protective material, such as polymer or epoxy, to enhance the steel's durability and resistance to corrosion. These surface treatments are chosen based on the specific requirements of the steel coils and the desired end-use applications.

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